I posted this about a year ago and got great responses!
I am the oldest of 3; I have 2 little brothers, one is 2 years younger, the other is 7 years younger (both are a foot taller, LOL)... I pretty much raised my brothers, so in our childhood, we had a very weird relationship (my role being caretaker vs 'big sister')...
The middle brother, I love him because he's my brother, but I don't LIKE him as a person. He's too stuffy and responsible, like we wouldn't be friends if we were strangers. He and his wife just bought a house an hour away, and we don't see each other very often, but we talk on the phone at least once a month. If I needed help with something, I know I could call him and he would be there. We've just recently been talking about how we were never as close as siblings as we probably should be, so we're working on it.
My baby brother (I say 'baby', but he's 21) I absolutely adore. He is the male version of me. I am so proud of him! He's in college and being responsible, but he's also making sure he's enjoying life as well. I'm much closer with him that my other brother, because we have more in common. I don't see him much when he's in school, but I know if I'm bummed out, I can always call him for a good laugh! I mean, the kid rented a LLAMA... yeah.
Since we're all adults now, I do feel like our relationship is evolving. I'm no longer the caretaker (obviously), and they are both uncles to my kids (and I can't wait to be an aunt!!)... We talk about 'reliving' some of our childhood as adults, like the 3 of us want to go camping where our parents used to take us as little kids, stuff like that. I'm definitely closer now with my brothers than ever before, I think because some of the weight of care taking is off my shoulders, and we're all equals standing on our own 2 feet now :)
I would do anything for my brothers. I have their initials tattooed on the inside of my wrist. I would have their back no matter what, and I know they'd do the same for me!!